package com.shen.JUC.duilie;

import java.util.concurrent.BlockingQueue;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.TimeUnit;

public class synDemo {
    public static void main(String[] args) {
        /*同步队列
        * 和其他BlockingQueue不一样，SynchronousQueue不存储元素
        * put了一个元素，必须从里面先take取出来，否则不能再put进去值
        * */
        BlockingQueue<String> queue = new SynchronousQueue<>();
        new Thread(()->{

            try {
                System.out.println(Thread.currentThread().getName()+" put 1");
                queue.put("1");
                System.out.println(Thread.currentThread().getName()+" put 2");
                queue.put("2");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

        },"t1").start();
        new Thread(()->{
            try {
                TimeUnit.SECONDS.sleep(3);
                System.out.println(Thread.currentThread().getName()+" 得到"+queue.take());
                TimeUnit.SECONDS.sleep(3);
                System.out.println(Thread.currentThread().getName()+" 得到"+queue.take());
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

        },"t2").start();

    }
}
